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10 November 2006, Volume 35 Issue 04 Previous Issue    Next Issue

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Spatial Distribution of Pb, Cd, Ni, Fe in Mangrove Sediments of the Zhangjiang Estuary, Fujian Province LIU Jing-chun, YAN Chong-ling 2006, 35(04): 1-5.  Abstract ( )   PDF (967KB) ( )   Based on the studies of spatial distribution of Pb, Cd, Ni and Fe in mangrove sediments of Zhangjiang estuary, some conclusions were obtained.High contents of Pb and Fe were found in the sediments, while the contents of Ni and Cd were relatively lower.Different contents were found at different locations of mangrove wetlands, forest sediments had higher Pb and Cd contents compared to sediments of mudflat.The concentrations of Pb, Cd and Fe increased across the tidal flat to the mangrove forest transition.The results indicated that the total metal concentrations decreased with the increase of sediment depth. Related Articles | Metrics

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Application of Two Statistical Methods to Comprehensive Evaluation for Maize Germplasms ZHANG Zhen-wen, LI Kai-mian, XU Rui-li, YE Jian-qiu 2006, 35(04): 6-11.  Abstract ( )   PDF (928KB) ( )   Ten maize varieties were evaluated comprehensively by using gray relation and factor analysis.The effects of the two statistical methods on comprehensive evaluation were discussed.The evaluation results showed that Suwan 1 and Xiachengyunyou 78 were the better varieties and the results of two statistical methods for maize germplasm were in agreement with reality basically.The application of gray relation analysis and factor analysis could improve the reliability of comprehensive evaluation for maize germplasm. Related Articles | Metrics

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Effects of Different Nutrient Solution on Three Foliage Plants in Hydroponics ZHENG Zhi-bo, WANG Xiao-ning, MAI Jin-pei, HU Shi-jun, LUO Shi 2006, 35(04): 12-15.  Abstract ( )   PDF (768KB) ( )   Philodendron selloum, Spathiphyllum floribundum cv. ‘Mauna Loa’, and Dieffenbachia amoena cv.‘Tropic Marianne’ were water cultured in 8 different nutrient solutions and in the well water (CK), respectively, to study the effects of different nutrient solutions on their growth.The results showed that P. selloum and S. floribundum cv.‘Mauna Loa’ could grow well in solution supplemented with 11.2 mg/L NH4+-N, 134.4 mg/L NO3--N, 24.8 mg/L P, 187.2 mg/L K, 96.0 mg/L Ca, 28.8 mg/L Mg and 38.4 mg/L S.Nutrient solution containing 11.2 mg/L NH4+-N, 124.6mg/L NO3--N, 46.5 mg/L P, 202.8 mg/L K, 88.0 mg/L Ca, 14.4 mg/L Mg and 19.2 mg/L S gave the best result for the growth of D. amoena cv.‘Tropic Marianne’.And it was important to maintain the stable value of pH for water culture. Related Articles | Metrics

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Preliminary Study on Algae-control Technology During Flowers Hydroponic Culture LUO Hua-jian, ZHENG Zhi-bo, LUO Shi, LAI Yong-chao, ZENG Yun 2006, 35(04): 16-18.  Abstract ( )   PDF (1116KB) ( )   Hydroponic culture plants come into fashion in recent years.When the solution is exposed in the sunlight, algae will generate quickly and it is not good for the growth of plants.In the experience, active carbon, charcoal and VT-500 were added in the nutrient solution to study the inhibitory effects on algae in the plants hydroponic culture.The results showed that notable effects of the algae inhibition and stable level of pH were obtained when treated with active carbon in the solution.The effects of active carbon treatment were better than that of charcoal treatment and VT-500 treatment produced no good results for algal inactivation. Related Articles | Metrics

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Effects of 6-BA and B9 on Endogenous Polyamines During Differentiation of Flower Bud of Longan (Dimocarpus longan) ZENG Xin-ping, SU Ming-hua, LAI Rui-yun, CHEN Chun, XIE Zhi-nan 2006, 35(04): 19-21.  Abstract ( )   PDF (798KB) ( )   Spraying 6-BA 200 mg/L+B9 2000 mg/L on longan trees, the changes of endogenous polyamines contents in leaves were examined during the differentiation period of flower bud.The results showed that the endogenous putrescine (Put), spermidine (Spd), spermine (Spm) in longan leaves increased significantly in differentiation period of flower bud when treated with 6-BA+B9, especially for the Put and Spd.The results indicated that there was an internal relation between endogenous polyamines and differentiation of flower bud of longan. Related Articles | Metrics

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Study on the Flowering and Fruit Drop Characteristics in ‘Guifeihong’ Lichee LIANG Wen, ZHU Jian-hua, XU Ning, LIU Bing-hao, LI Jiang-zhou, LI Dong-bo, PENG Hong-xiang 2006, 35(04): 22-23,27.  Abstract ( )   PDF (730KB) ( )   The characteristics of florescence and fruit drop were investigated in ‘Guifeihong’ lichee, a new lichee variety selected and bred by Guangxi Academy of Agricultural Sciences.According to the observations, the characteristics of flowering and fruit drop of this new variety were summarized, and some meaningful measures were made out. Related Articles | Metrics

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Elimination of Citrus Huanglongbing Diseases by Shoot-tip Grafting and the Methods of Detection LIU Bo-ling, LI Guo-huai, CHENG Yun-qing 2006, 35(04): 24-27.  Abstract ( )   PDF (938KB) ( )   The shoot-tip grafting (STG) technique was used to eliminate the bacterial-like organisms (BLOs), and survival plants were obtained by the technique.Polymerase chain reaction (PCR) and direct fluorescence detection methods were regarded to detect the efficiency of STG.The result showed that the highest rate of survival plant was 75%;the BLOs were not detected by the two methods in the STG plants, while the original material all infected by BLOs.The efficiency of elimination of huanglongbing by STG was 100%;the rate of detection by PCR was 100%, but only 33.3% by direct fluorescence detection.So PCR has higher sensitivity.These young STG plants obtained by STG were virus-free young plants and STG could be used for propagating virus-free plants for citrus production. Related Articles | Metrics

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Research on Genetic Relationship Between Red-fleshed Sweet Pomelo and Guanxi Sweet Pomelo HUANG Xin-zhong, LU Xiu-min, CHEN Xiao-ming, CHEN Jing-ying, WANG Xue-fang, ZHANG Li-mei, CAI Sheng-hua 2006, 35(04): 28-31.  Abstract ( )   PDF (956KB) ( )   Red-fleshed sweet pomelo was originated from the high-quality bud sport of Guanxi sweet pomelo.The fruit mature period and the color of juice vesicle were different from Guanxi sweet pomelo, but other biological characteristics were similar to Guanxi sweet pomelo.They showed incompatibility when used the methods of mixed culture or artificial pollination each other.But pollinated with other cultivars' pollen, the fruits of red-fleshed sweet pomelo and Guanxi sweet pomelo could form many developed seeds or rudimentary seeds.Their pollen morphological characteristics were similar.Amplified fragment length of ITS-PCR was accordant, and bands were single in the two cultivars.These indicated that they have close genetic relationship, and red-fleshed sweet pomelo was originated from the bud sport of Guanxi sweet pomelo. Related Articles | Metrics

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Effects of Preservative Formulas and Storage on the Vase Ornamental Quality of Cut Strelitzia reginae Flower CHEN Yuan-quan, CHEN Shi-lin, HUANG Min-ling, LIN Bing, WU Jian-she, YE Xiu-xian 2006, 35(04): 32-34,38.  Abstract ( )   PDF (790KB) ( )   Different preservative formulas, preconditioning liquids and refrigerating time influenced on vase life and quality of cut Strelitzia reginae flowers were studied.The results showed that 5% S+300 mg/L 8-HQC+100 mg/L CA+150 mg/L STS+100 mg/L CoCl2+25 mg/L EDTA-Na was the best of the 8 various preservatives.The vase life of cut flower (23.5 days) lengthened 15.2 days, and the blooming rate of small flowers (56.1%) increased by 1.19 times compared to CK.The prescription of 10% S+300 mg/L 8-HQC+75 mg/L KH2PO4·3H2O was the best of the 5 various preconditioning liquids.The vase life of the cut flower was 13.7 days after refrigeration of 2 to 3 weeks under 8~10℃.The vase life lengthened 7.9 days, and the blooming rate of the small flowers (43.6%) increased by 98.2%.The suitable cold storage time for cut Strelitzia reginae flowers could lengthen to 3 weeks. Related Articles | Metrics

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Extraction and Determination of Total Flavonoids from Root, Stem and Leaf of Suaeda australis HUANG Xiao-kun, ZHU Jia-yuan, HUANG Xiao-dong, MIU Cui-yan, CHEN Jie-fang 2006, 35(04): 35-38.  Abstract ( )   PDF (763KB) ( )   The effects on the flavonoids content in roots, stem and leaves of Suaeda australis of different concentration ethanol, ratio of material to liquid, extraction temperature and time were studied by the orthogonal experiment.Extracted by the optimum extraction conditions, purified by polycaprolactan, produced color with Al(NO3)3, the flavonoids content was determined.Results showed that the optimum conditions of extraction were as follows:from root, extracted by 50:1, 45% ethanol at 80℃ for 30min;from stem, extracted by 30:1, 60% ethanol at 80℃ for 50min;from leaf, extracted by 30:1, 75% ethanol at 80℃ for 30min.The flavonoids content in root, stem and leaf of Suaeda australis was 1.50%, 0.94%, 6.35%, respectively. Related Articles | Metrics

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Study on the Extraction Process of Corydalis decumbens LI Xiao-meng, CHENG Li-hui, LIU Hui-qiong 2006, 35(04): 39-40,44.  Abstract ( )   PDF (810KB) ( )   The study on extraction process of Corydalis decumbens was carried out through orthogonal experimental design with protopine as the index.The effects of alcohol concentration (A), alcohol dosage (B), extraction times (C) and number of times (D) were investigated, respectively.The results showed that the optimal conditions for the extraction of protopine were obtained as follows:the concentration of alcohol 90%, material to alcohol 1:6 each time, extraction for 3 times, extraction time 2 h at first time, and then 1h every time.The optimal process was proved to be better than the extraction process of acid. Related Articles | Metrics

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Effect of Inoculating with the Ectotrophic Mycorrhizal Epiphyteon on Seedling Growth of Tsuga longibracteata ZHENG Jin-shuang 2006, 35(04): 41-44.  Abstract ( )   PDF (767KB) ( )   Effect of inoculating with the ectotrophic mycorrhizal epiphyteon on seedling growth was studied in this paper.The results showed that inoculation with the ectotrophic mycorrhizal epiphyteon could enhance the regeneration capability of Tsuga longibracteata in lean soil area.Ectotrophic mycorrhiza had the evident promoting effects on the growth of T.longibracteata seedlings and the absorption of nutrient.The inoculated seedling height, root biomass, leaf biomass and the contents of N, P and K increase significantly, and the mycorrhizal infective rate was over 75%, which all at significant level as compared with the control.But inoculation with the ectomycorrhiza had not evident effects on biomass distribution in roots, stems and leaves of T.longibracteata. Related Articles | Metrics

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Adaptability of Introduced Foliage Plants of Araceae, Agavaceae and Palmaceae in the Central Part of Fujian Province CHEN Shui-long 2006, 35(04): 45-48.  Abstract ( )   PDF (767KB) ( )   The basic ecological characteristics and introduced adaptability of Araceae, Agavaceae and Palmaceae in the central part of Fujian Province were studied.The results showed that the suitable growth temperature for most of the plants was 18~28℃.When the temperature was lower than 10℃ or higher than 35℃, most plants would stop growing or be injured.The shade density of 75% was suitable for Araceae and 50% for Agavaceae.Palmaceae could grow normally under full exposure.The optimum soil moisture content for the growth of Araceae was higher than 80%, Agavaceae higher than 70%, and Palmaceae higher than 55%.When the humidity of the air was 80%~90%, it gave the best condition for the growth of these foliage plants. Related Articles | Metrics

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Application of Flower Border to Landscape in Xiamen LIN Qiao-ling 2006, 35(04): 49-52.  Abstract ( )   PDF (1120KB) ( )   In recent years the applications of flower border to landscape are common in Xiamen.In this paper, the patterns and functions of flower border were introduced briefly, and its development in landscape of Xiamen was summarized by means of investigation on the applications of flower borders in Xiamen.Some feasible suggestions for improving the flower border were put forward. Related Articles | Metrics

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Plants Flowering in Winter and Their Applications to Landscape in South China WU Duan-zheng 2006, 35(04): 53-56,61.  Abstract ( )   PDF (806KB) ( )   There are more than 100 species (including cultivars and varieties) of 48 families blooming in winter in south China.According to biological and ecological characters, they can be divided into five types that as blooming naturally in winter, blooming in early spring, flowering throughout the year, introduced from tropic region, and cultivated varieties or forcing plants.These plants can be used as the Spring Festival flowers, street trees or landscape trees, groundcover plants, and cut flowers etc. Related Articles | Metrics

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Harmfulness and Dissemination of Invasive Plant Diseases and Insect Pests and Their Control Strategies LIN Qing-hong, LIN Guang-rong 2006, 35(04): 57-61.  Abstract ( )   PDF (798KB) ( )   The harmfulness and dissemination of invasive plant diseases and insect pests were introduced, and their control strategies were also proposed. Related Articles | Metrics

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Processing Technology of Raw-juice and Beverage of Psidium guajava XU Wen-jiang, LIN Qing-hong, LIN Jie, WU Feng-ruan 2006, 35(04): 62-62,65.  Abstract ( )   PDF (753KB) ( )   Related Articles | Metrics

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Tissue Culture and Plantlet Regeneration of Ranunculus japonicus WEN Guo-qin, HE Dao-wen, HE Zhen 2006, 35(04): 63-63.  Abstract ( )   PDF (657KB) ( )   Related Articles | Metrics

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The Transplant Technique of Mangrove Plant CHEN Qing-xiu, CUI Shou-fu 2006, 35(04): 64-65.  Abstract ( )   PDF (684KB) ( )   Related Articles | Metrics

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Application of Genetic Engineering Technology in Plant Quality Improvement WANG Yi-qun 2006, 35(04): 66-70.  Abstract ( )   PDF (847KB) ( )   The great progress has been made in plant quality improvement by the technology of genetic engineering for many years, such as improvement of starch quality, protein and fresh-keeping fruit and vegetable, an increase in nutritious and health-protected ingredients in transgenic plants and plant vaccine production by genetic engineering, therefore plant quality improvement by the technology of genetic engineering has brilliant prospects. Related Articles | Metrics

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A Review of Research Advances in Rare and Endangered Plant Tapiscia sinensis XIE Chun-ping 2006, 35(04): 71-74.  Abstract ( )   PDF (789KB) ( )   Tapiscia sinensis, a rare and endangered plant endemic to China, has very important scientific research value to study China flora of subtropical area and the phylogeny of Staphyleaceae.The taxonomic state, morphological characteristics, ecological characters, propagation technique and resources exploitation of Tapiscia sinensis are summaried in the paper, which can provide reference for studying this plant in future.Finally, measures and proposals for protection are presented. Related Articles | Metrics

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A Review of the Medicinal and Health-care Value, Development and Utilization of Antrodia camphorata HU Ou, LIAN Zhang-fei, ZHANG Jun-yi, LU Xi 2006, 35(04): 75-78.  Abstract ( )   PDF (816KB) ( )   Antrodia camphorata is a kind of rare medicinal fungus that only grows in Taiwan.It has the effect to raise immunity dint, protect liver and anti-cancer, counteract poison.The present studies on mycotaxonomical and morphological characteristics, nutritional ingredient, edible value and medicinal functions of A.camphorata are reviewed in this paper.The development and utilization of A.camphorata are also put forward. Related Articles | Metrics

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Progress in Study on Toxicity of Cerbera manghas and Its Exploitation DU Shi-jie, ZHU Wen 2006, 35(04): 79-81.  Abstract ( )   PDF (730KB) ( )   The history and present status of studies on genus Cerbera manghas were summarized in this paper.The problems in toxicity study and exploitation of C. manghas were also discussed. Related Articles | Metrics